Hi,
In Tree structure Model an Array of Ancestors (update action) in your example in case document "LG" has childs - this code will break structure for them, because you updating list of ancestors for "LG", but do not update list of ancestors for childs of "LG" (and recursively for other sub^n-childs). This will lead to inconsistency of data and ultimately will break it.
Example:
{"_id":"Electronics"},
{"_id":"Other Electronics"},
{"_id":"LG", "parent":"Electronics", "ancestors":["Electronics"]}
{"_id":"LG_phone", "parent":"LG", "ancestors":["Electronics","LG"]}
let's move "LG" from "Electronics" to "Other Electronics"
new data will be:
{"_id":"Electronics"},
{"_id":"Other Electronics"},
{"_id":"LG", "parent":"Other Electronics", "ancestors":["Other Electronics"]}
{"_id":"LG_phone", "parent":"LG", "ancestors":["Electronics","LG"]}
Hi,
In Tree structure Model an Array of Ancestors (update action) in your example in case document "LG" has childs - this code will break structure for them, because you updating list of ancestors for "LG", but do not update list of ancestors for childs of "LG" (and recursively for other sub^n-childs). This will lead to inconsistency of data and ultimately will break it.
Example:
{"_id":"Electronics"},
{"_id":"Other Electronics"},
{"_id":"LG", "parent":"Electronics", "ancestors":["Electronics"]}
{"_id":"LG_phone", "parent":"LG", "ancestors":["Electronics","LG"]}
let's move "LG" from "Electronics" to "Other Electronics"
new data will be:
{"_id":"Electronics"},
{"_id":"Other Electronics"},
{"_id":"LG", "parent":"Other Electronics", "ancestors":["Other Electronics"]}
{"_id":"LG_phone", "parent":"LG", "ancestors":["Electronics","LG"]}